If you call recv() in non-blocking mode, it will return any data that the system has in it's read buffer for that socket. But, it won't wait for that data. If the read buffer is empty, the system will return from recv() immediately saying ``Operation Would Block!''. The same is true of the send() API.
Jacksboro welcoming sign. Jacksboro is a city in Jack County, Texas, in the United States. The population was 4,511 at the 2010 census. Jacksboro is located at the junction of U.S. Highways 281 and 380, and it is the county seat of Jack County. 1 Geography.
History[edit] Jacksboro was founded in 1806 as a permanent county seat for the newly created Campbell County. The initial property for the town square was deeded by Hugh Montgomery, one of the earliest settlers in the area.